The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 06, 1992

Filed:

May. 22, 1991
Applicant:
Inventor:

Tsuneo Adachi, Higashimatsuyama, JP;

Assignee:

Zexel Corporation, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B / ; G01P / ; G01P / ;
U.S. Cl.
CPC ...
32420725 ; 32420711 ; 32420712 ; 324174 ;
Abstract

In an apparatus for processing an output signal of a rotation sensor having a magnetic-electric transducer and the associated magnetic rotary member, a first level discriminator responsive to the output signal produces a first signal whose level changes at a detection time the transducer relatively comes opposite a predetermined position of the rotary member, and a second level discriminator responsive to the output signal produces a second signal whose level changes at a time different from the detection time. In order to obtain a pulse carrying information on the detection time, the first and second signals are input to a logic circuit, by which the pulse is produced in response to the change in the level of the first signal only in the case where the level of the second signal is in a prescribed state when the level of the first signal changes at the detection time, whereby the desired detection time can be precisely determined.


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